subsim
18" Bass Reflex
Specifications
| Topology | bass reflex |
|---|---|
| Net volume | 140 L |
| Dimensions (H×W×D) | 780 × 550 × 500 mm |
| Footprint | 2750 cm² |
| Weight | 42 kg |
| F3 | 40 Hz |
| F6 | 32 Hz |
| Fb (port/vent tuning) | 38 Hz |
| Max SPL | 134 dB |
| Impedance minimum | 5.9 Ω |
| Recommended crossover | 100 Hz |
| Recommended power | 800 W |
| Power handling (AES) | 1000 W |
| Power handling (program) | 2000 W |
| Max port velocity | 22 m/s |
| Output density | 112.5 dB/size |
| Plywood sheets | 3× 2440×1220 mm |
| Connectors | speakON NL4 |
Drivers (1)
| Model | Format | Impedance | Fs | Detail | Pe | Sensitivity |
|---|---|---|---|---|---|---|
| B&C 18DS115 | 18" | 8 Ω | 30 Hz | Qts 0.2 · Vas 168 L · Xmax 16.5 mm | 1700 W | 98 dB |
Measurements / Simulations
Images
Sources
- design.txt · hornresp
Notes
Build notes
Sample data: values are illustrative, not measured.
Conventional front-loaded bass reflex tuned to 38 Hz. Lower output than the tapped horn variant but half the volume and much easier to build.
Port
- Single round port, 150 mm diameter
- Port length: 420 mm
- Tuning: 38 Hz (Fb)